"DeeAl from Hell" i think Straffo.... Download from Hell maybe....
DL, this is what you need to do for a name change:
Email Carrie (billing@hitechcreations.com) or call her at the Office (number under Support/Contact us). Let her know your loginID, your current game ID and the one you would like to have instead. Note that you are aware you will loose all squad affiliations and perk points (as well as your current tour ranking) with the name change.
I dont really know about TShirts and such... I guess you can just ask at the office as well.